The Worst Epidemics Throughout History

Dance Mania

Dance mania was not actually dancing, maybe. Doctors today have diagnosed it as many things. Some say it was mass mania, a collective hysteria disorder, and collective mental illness. Thousands of people would gather and dance for days, weeks, and even months. The only agreed upon symptom is what seemed like an unconsciousness and lack of control of their actions. 

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The More You Know

  • Hippos produce their own sunblock.
  • Dr. Seuss wrote "Green Eggs and Ham" on a bet.
  • When the Super Bowl champion Giants visited the White House in 1987, they dumped popcorn on President Reagan.
  • Mysterious sand dune holes baffled Indiana for years.
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